In many formal methods applications it is common to rely on SMT solvers to automatically discharge conditions that need to be checked and provide certificates of their results. In this thesis we aim both to improve their efficiency of and to increase their reliability. Our first contribution is a uniform framework for reasoning with quantified formulas in SMT solvers, in which generally various...

A restriction most Description Logics (DLs) have in common with most Modal Logics is their restriction to unary and binary predicates. To our knowledge, the only DLs that overcome these restrictions and allow for arbitrary n-ary relations are NaryKandor 8] and the very expressive DL DLR 2]. In the eld of Modal Logics, there are two generali-sations that allow for n-ary predicates: Polyadic Moda...

many management experts believe that the decision-making is management synonymous or the most important part of it. therefore, understanding the influencing factors on decision making is a significant issue and the purpose of the present study is to investigate the effect of career motives on entrepreneurial decision making. to answer the main question in this research, the effect of the indepe...

Because of the complexity of decision-making environment, the uncertainty of fuzziness and the uncertainty of grey maybe coexist in the problems of multi-attribute group decision making. In this paper, we study the problems of multi-attribute group decision making with hybrid grey attribute data (the precise values, interval numbers and linguistic fuzzy variables coexist, and each attribute val...

Hypertext is an emerging technology that has not been researched adequately, particularly in organizations that utilize decision support technologies. This paper suggests that developing a set of dependent variables to measure effectiveness of hypertext in decision support is an important first step in a program of research. A review of empirical hypertext research is presented followed by a di...

Discriminant analysis is a classification method that can predict the group membership of a newly sampled observation. In discriminant analysis, classification of new observed data has an uncertainty. In this paper, the confidence degree is introduced to determine the confidence of classification of new observed data. Then, a Monte Carlo-based sensitivity analysis is applied to an assessment of...

Binary decision diagrams (BDDs) are effective means to cope with complex concurrent system. But the size of BDD itself can be relatively large. We study the BDD representation of large synchronous, asynchronous and interleaved processes with communication via shared variables. Due to the features of communication, we introduce a novel representation strategy. Based on the model, we continue to ...

The extent to which consumers value the expected future fuel savings from fuel economy improvements to new passenger cars and light trucks is a key determinant of the levels of fuel economy achieved in unregulated markets and the effects of regulatory standards on consumers’ surplus. This paper reviews 28 recent quantitative analyses of consumers’ willingness to pay for automotive fuel economy....

An introduction to formal speciication and verii-cation using Ehdm. As an illustrative fragment of the text submitted to the Ehdm formal veriication system, the statement and proof of the manifest-faulty case of the hybrid version of Lemma 5 is reproduced below. The speciication has been prettyprinted by Ehdm. The text of the full veri-cation is 110 pages long. The list following the from keywo...

A logical calculus, not unlike Gentzen's sequent calculus for intuitionist logic, is described which is sound for polynomial-time realizability as deened by Crossley and Remmel. The sequent calculus admits cut elimination, thus giving a decision procedure for the propositional fragment. 0 Introduction In 4], a restricted notion of realizability is introduced, a special case of which is polynomi...